Hall & Oates star John Oates and country singer/songwriter Vince Gill are teaming up to raise funds to aid an ailing guitarist pal.The duo will be among those performing at a benefit for fabled session musician Pete Huttlinger in Nashville, Tennessee on 26 July (11). Huttlinger, who was born with a congenital heart defect, is awaiting a heart transplant. The guitarist has worked with LeAnn Rimes and John Denver. Huttlinger suffered heart failure in March (11) and was flown to St. Luke's Texas Heart Institute in Houston, where he underwent surgery in May (11) to have a heart pump installed. When he recovers from the surgery, he will return to Nashville and await a heart transplant at Vanderbilt University Medical Center.